PRACTICE TEST-1-Class 10 -Science- Biology-Chapter 5

Class10 - Life Process- biology Mock Test.

This Test Consist of 20 Questions

Total Time - 20 -Minutes

Incomplete double circulations is found in:

People suffering from high blood pressure should take which of the following precautions to avoid an excessive rise in their blood pressure?

Sleep as much as possible

Increase their body weight

Avoid emotional disturbances and excitement

Avoid standing

None

A transport system is needed to transport

(i) Nutrients, oxygen and hormones from the place, they are absorbed or received to the cells.

(ii) Waste products from the place they are formed to the place from where they are eliminated outside.

(iii) Heart beat, chromosome.

(i) and (ii) correct

(i) and (iii) correct

(ii) and (iii) correct

(i) , (ii) and (iii) correct

None

Which of the following statements is/are true(T) or false(F) regarding nutrition in organisms?

(i) Photosynthesis also occurs in leaves having colors other than green.

(ii) The process of photosynthesis first produces a simple carbohydrate called glucose which then gets converted into a complex carbohydrate called starch.

(iii) Cuscuta is a yellow-colored plant but it can synthesize its own food by photosynthesis.

(iv) In a symbiotic association, Rhizobium bacteria derive their nutrition from fungus.

(i)-T, (ii)-T, (iii)-F, (iv)-F

(i)-F, (ii)-T, (iii)-F, (iv)-F

(i)-T, (ii)-T, (iii)-T, (iv)-F

(i)-F, (ii)-F, (iii)-F, (iv)-T

None

Blood pressure in the veins is lower than that of arteries. The best hypothesis to explain this is that

Veins are farther from the heart

Most veins carry blood up-hill

Veins have thinner walls than arteries

Capillaries offer resistance to the blood flow

None

The fluid present between the blood capillaries and the cell membrane, through which gasses, nutrients, and metabolic wastes are exchanged between the blood and the cells are called as:

Group A Group B

1. Bowman's capsule A. Bundle of blood capillaries seen in Bowman's capsule

2. Glomerulus B. Renal dialysis

3. Reabsorption C. The cup-shaped upper end of the nephron of kidney

4. Artificial kidney D. Observed in marine and terrestrial animals

1- A, 2- C, 3- D, 4- B

1- A, 2- D, 3- B, 4- C

1- C, 2- A, 3- D, 4- B

1- B, 2- A, 3- D, 4- C

None

Given is an animal followed by three terms or features. Choose the term which does not match with the animal.

Amoeba.

Tentacle

None of the above

Food vacuole

Nucleus

None

Choose the correct pair of sentences that are true to photosynthesis

(i) Sunlight, carbon dioxide, chlorophyll and water are necessary.
(ii) Oxygen is absorbed.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.

(i) and (iv)

(i) and (iii)

(ii) and (iv)

(iii) and (iv)

None

10.

A student poured alcohol on a plant continuously for a long time. Why can the plant not prepare its own food?

Alcohol dissolved chlorophyll present in the plant

Alcohol dissolved all the minerals present in the plant.

Alcohol absorbed all the food prepared by the plant.

Alcohol does not let the plant to absorb carbon dioxide from the air.

None

11.

Pancreatic amylase acts on

12.

Which of the following statements is/are correct?

i) All green plants can prepare their own food.

ii) Most animals are autotrophs.

iii) Carbon dioxide is not required for photosynthesis.

iv) Oxygen is liberated during photosynthesis.

Choose the correct answer from the options below

(i) and (iv)

(ii) only

(ii) and (iii)

(i) and (iii)

None

13.

Plant X is a vascular and invasive plant species that grows densely over the surface of a lake at a very high rate, due to pollution in water. It has been linked to oxygen depletion of the water, in spite of the fact that it is photo-synthetic.

Which of the following accounts for this contradiction?

None of these

While being photosynthesis, X consumes oxygen at a faster rate than it releases the same, because of its high rate of growth

Because X is highly invasive, it incorporates a large quantity of oxygen in its biomass

When X dies, the bacteria that decompose its dead body consume the oxygen dissolved in water and grow rapidly

None

14.

Consider the following statements.

(a) In muscles, anaerobic respiration produces carbon dioxide, water and energy.

(b) Artificial kidney is a device to remove nitrogenous waste products from blood through dialysis.

Which of the above statements are correct?

b and c

a and c

a and b

None of the above

None

15.

Choose the correct answer from the alternatives given.

In an one-circuit circulatory system, blood pressure:

is higher at the intestinal capillaries than at the gill capillaries

cannot be determined

is constant throughout the system

drops significantly after gas exchange has taken place

None

16.

Utilization, rearrangement, and decomposition of complex organic matter, known as

17.

Match the columns.

List 1 List 2

A. Regulation 1. The removal of metabolic waste from an organism.

B. Reproduction 2. The chemical process of oxidizing organic molecules to release energy.

C. Respiration 3. The replication of an organism.

D. Excretion 4. The control and coordination of chemical processes within the organism.

A- 3, B- 4, C- 2, D- 1

A- 4, B- 3, C- 2, D- 1

A- 4, B- 2, C- 3, D- 1

A- 4, B- 3, C- 1, D- 2

None

18.

Oxygen liberated during photosynthesis comes from?

19.

'The master chemists of our body are the kidneys'. Justify the given statement.

Kidneys filter all chemicals in the body.

Kidneys eliminate all chemicals absorbed by the body

Kidneys store the chemicals accumulated in the body.

Kidneys maintain the chemical composition of blood.

None

20.

Which one of the following helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem ?

translocation

transportation

transaction

transpiration

None

Chapter 5 - Life Process

Chapter 6 -Control and Coordination

Chapter 7: How Do Organisms Reproduce

Chapter 8 :Heredity and Evolution

ASSERTION AND REASON

CASE BASED QUESTIONS

Curriculum

Ncert Class 10 - science - Biology

Chapter 5 - Life Process

Chapter 6 -Control and Coordination

Chapter 7: How Do Organisms Reproduce

Chapter 8 :Heredity and Evolution

ASSERTION AND REASON

CASE BASED QUESTIONS

PRACTICE TEST-1-Class 10 -Science- Biology-Chapter 5 – Life Process